people please help there is a really discusting boy on my bus!?

[I heart ralph lauren!]

ok so there is this really perverted boy on my bus and he is so gross because he talks about really nasty things to his friends really loudly! he has just started to annoy me and I am getting sick of it. So everytime I come on the bus, he will repeat my name over and over again until i finally turn around (btw if i don't turn around, he will like, scream it out and the whole bus will hear). When i turn around, he always asks me this nasty, perv. question and normally i just roll my eyes and turn back around or say ew or something. The problem though is that he REPEATS it over and over again! so i will turn back around after his nasty questions and he will say my name again!!!!!!Today i was almost like, crying because i was so frustrated. And don't picture me as this confidentless loser that has no friends and can't stick up for herself because i sooooo am not! I am just really tired of him. Another thing, is that when he does that, all his friends laugh and it's really embarassing. I wish he would just leave me alone because he is such a nasty creeper. the thing is HOW? Please help!!!! Thanks!
-Skye